That’s something I should have addressed. Of course if Matthew is by the apostle Matthew then the whole picture is different. But
simply using historical methods it seems highly unlikely that it is. (What the Church requires for faith, by its authority, is a separate discussion–we are supposedly talking about what can be shown historically without appealing to the Church’s authority.) Yes, there’s very early witness to Matthew having written a Gospel. But those same witnesses say he wrote it in Hebrew. Matthew as we have it is not in Hebrew, and while it’s got a number of “Aramaisms” I don’t think any serious scholars think that the book as we have it is a translation (and by “serious scholars” I’m including very conservative ones). Quite possibly (this is my own view) there was a Hebrew text by Matthew, now lost, which served as a major source for what we have as the Gospel of Matthew (my own very speculative opinion is that this is probably what scholars call “Q,” which wouldn’t include Matt. 16 anyway).
There are scholars who think that Matthew was written first. But even they do not, for the most part, think it was written by Matthew. And they are a small minority. The vast majority of scholars think that Mark was written first. If Mark was written first, then it’s highly unlikely that Matthew wrote the Gospel as we have it. The verbal parallels with Mark are too close. (Yes, it’s possible that Matthew sat down with the text of Mark and added other things from his own recollections, but it’s extremely unlikely. I can walk you through some of the specific reasons why it’s unlikely if you really want me to . . . )
Is there an argument behind this? You are acting as if this is all wild stuff I’m making up. I’m not giving you wild theories or extreme opinions. I’m giving you basic stuff that would be agreed on even by conservative scholars, for the most part. And the idea that KoG and KoH are the same is completely non-controversial except among dispensationalists.
That view of Mark is indeed found in the early Christian sources, and I tend to agree with it. However, it can’t be proven, so for purposes of the “spiral argument” it won’t hold.
There’s another view of Mark also found in early Christian writings, which is that it’s an abridgement of Matthew. If Matthew was written first, and by an Apostle, then that view would appear to be correct. In other words, I think you have to choose between the opinion that Matthew as we know it was written by an apostle, and that Mark is essentially Peter’s account put into written form by Mark. The similarities between the two Gospels are far too close to be accounted for simply by the fact that they’re telling the same story. (John is telling the same story too, and look how different John is. That’s what a genuinely independent source looks like.) One of them was largely copying the other. I think the stronger evidence both from modern analysis and from the ancient witnesses is in favor of the view that Mark is the more direct account. The ancient testimony that Matthew wrote Matthew can be explained quite well by the theory that Matthew is the source for part of the material that became the Gospel of Matthew.
Again, the only part of all of this that is at all unusual or idiosyncratic is my relatively more conservative stance compared to what you would hear from most NT scholars. (I’m a church historian who specializes in the history of Biblical interpretation, not an NT scholar per se.) Most NT scholars would simply scoff at the idea that Matthew had anything to do with Matthew or that Mark is based on Peter’s eyewitness account. What is dubious and speculative in the above is my attempt to account respectfully for the second-century evidence. The basic point that Mark and Matthew are clearly dependent on each other (i.e., one author used the other text as a starting point) is as solid as any result of historical/literary inquiry can be.
This is all about what can be proven historically. What the Church teaches is another matter. (And the word “proven” can only ever be used about history with heavy qualifications. history is all about probability.)
Well, we both think we’re using logic and reason, obviously
That was actually a problem last fall, when I went into RCIA. The class was good but, from my perspective, a bit boring, and I kept interjecting things like “Well, Aquinas says this about that,” which confused the other participants. (I tried not to, but it is very hard for me to just sit still–it’s one of my faults.) The priest emailed me and suggested that I meet with him individually. By this time I was getting my usual cold feet, and I set the whole thing aside for another year. . . .
Edwin